[example 1] the car starts to move in a straight line with uniform acceleration at the acceleration of 1 m / S2 from standstill

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• 1. When car a and car B start from the same place at the same time, car a decelerates uniformly with the initial speed of 16m / s and the acceleration of 2m / S2; car B accelerates linearly with the initial speed of 4m / s, the acceleration of 1m / S2 and car a in the same direction. The maximum distance between the two cars when they meet again and the movement time of the two cars when they meet again are calculated
• 2. When car a and car B start from the same place at the same time, car a decelerates uniformly with the initial speed of 16m / s and the acceleration of 2m / S2; car B accelerates linearly with the initial speed of 4m / s, the acceleration of 1m / S2 and car a in the same direction. The maximum distance between the two cars when they meet again and the movement time of the two cars when they meet again are calculated
• 3. A and B start from the same ground and direction at the same time and make a straight-line movement on the same horizontal highway. A makes a uniform deceleration movement with an initial speed of 16m / s and an acceleration of 2m / S2, Party A and Party B start from the same ground and direction at the same time, and move in a straight line on the same level highway. Party A decelerates uniformly with an initial speed of 16m / s and an acceleration of 2m / S2, and Party B moves uniformly with an initial speed of 4m / s and an acceleration of 4m / S2 (1) The maximum distance between two cars (2) How long does it take for two cars to meet
• 4. A and B start at the same place and direction. A decelerates with an initial speed of 16m / s and an acceleration of 2m / s, and B decelerates with an acceleration of 2m / s 4 m / s initial velocity, 1 m / s Square acceleration, find 1. The maximum distance between two vehicles before they meet again? 2. The time required for two vehicles to meet again? Can we use equations in mathematics,
• 5. The acceleration is three meters to the second power, and the two cars move in the same direction The acceleration is three meters per second, and the car B lags behind two seconds. At the same place, the car B starts to move in a straight line with uniform acceleration, and the acceleration is four meters per second. The two cars move in the same direction, How long does it take for car B to catch up with car a? How far are they from the starting point?
• 6. When a car starts to move in a straight line at a constant acceleration of 2 meters per second, just at this moment a bicycle will go at a speed of 8 meters per second Come at a constant speed and drive past the car from behind. How long does it take for the car to catch up with the bicycle after it starts to move? What is the distance between the two cars? When does the car catch up with the bicycle? What is the speed of the car at this time?
• 7. Car a starts to move in a straight line with a constant acceleration of 2 meters every second. Car B lags behind by 4 seconds at the same place The two cars are moving in the same direction. Ask 1: what is the maximum distance between the two cars before car B overtakes car a? 2: how long does it take for car B to catch up with car a after starting? How far are they from the starting point at this time?
• 8. Car a starts to move in a straight line with constant acceleration at 3 meters per second and car B lags behind for 2 seconds. At the same place, car a starts to move in a straight line with constant acceleration at 4 meters per second. The directions of the two cars are the same. What is the maximum distance between the two cars before car B catches up with car a? How long can car B catch up with car a after starting? How far are they from the starting point at this time?
• 9. The second time, the car moved in the same way, but it broke down suddenly after 5 seconds. The next car stopped on the side of the road and then transported. The handover time was 20 seconds. The latter car also started with the original acceleration, Now, in order to make the car still arrive at the ambulance station at the scheduled time, what is the final uniform speed of the car?
• 10. [physics of grade one in senior high school] acceleration and force problems of trolley motion The question has a picture There is a sentence in the answer: the small plate and the weight pull the car, and the force to make the car do uniform acceleration linear motion is equal to the gravity of the small plate and the weight Let t be the one pulling the trolley and Mg be the gravity. Then, is it not mg-t = ma that we are doing the uniform acceleration motion now? How can we make the force of the trolley doing the uniform acceleration linear motion equal to the gravity of the small plate and the weight?
• 11. The acceleration of a particle is 1 m / S2 in the first second and 1 m / S2 in the second second - 1m / S2, the third is 1m / S2, and the fourth is - 1m / S2. After 100 seconds, the particle displacement is "average velocity in 100 seconds" and "instantaneous velocity at the end of 100 seconds"?
• 12. A car with a uniform speed of 10m / s, after turning off the engine, decelerates with an acceleration of 4m / S ^ 2. What are the speeds at the end of 2S and 3S?
• 13. When the vehicle runs at a constant speed of 10 m / s, the engine is turned off at the end of the second second second, and the average speed in the third second is 9 m / s---- The displacement of the vehicle in 10s is ----- M It's a process!
• 14. The average speed in the third second is 9 m / s. find (1) the acceleration of the uniform deceleration of the car (2) the displacement of the car in 10 s
• 15. What is the acceleration of a car running at a constant speed of V = 10 m / s when the engine is turned off at the end of the second second second and the average speed is 9 m / s in the third second?
• 16. The object moves in a straight line with an acceleration of 2m / S2 at constant deceleration. The displacement within 2 seconds before stopping is 1 / 4 of the whole displacement. The initial velocity of the object is calculated
• 17. The acceleration is 3m / S ^ 2. If the initial velocity is 20m / s, the velocity of the particle will decrease after 4S
• 18. At most, a rope can pull an object with a mass of 3M and decelerate with a uniform acceleration If a rope can pull an object with a mass of 3M at most and decelerate at the acceleration of a, then the rope can pull an object with a mass of m at most and increase at the same speed?
• 19. After landing, the aircraft decelerates and glides evenly. The initial speed is 60m / s and the acceleration is 3m / S2. How long does the aircraft stop after landing () A. 10sB. 15sC. 20sD. 30s
• 20. The car moves in a straight line with a uniform deceleration at an acceleration of 3m / S2, passing two poles with a distance of 10m, and passing the second pole at a speed of 2m / s Find 1. Speed of car passing through the first pole 2. Time of car passing through two poles